Figure 1

Study Area. (a(i)) GRACE TWSA seasonal variation during 2008–2013 indicating surface moisture availability in the region. The error bars represent standard deviation. (a(ii)) Map of North-East India depicting the study region. Jorhat, our precipitation sampling station is marked on the map (red star), along with location of major river sampling locations (blue circle). (b–d) The monthly climatology of rainfall amount for the pre-monsoon, monsoon, and post-monsoon season respectively in the region from 1979 to 2018 has been obtained using ERA 5 reanalysis dataset.